[IMPR] Allow use of action=purge API parameters
[IMPR] Allow use of action=purge API parameters

Add options to use forcelinkupdate, forcerecursivelinkupdate, redirects,
and converttitles.

Change-Id: I607304403ded6eedc7d89885c1aecc9fe379e25c

wikimedia/pywikibot-core,PersianWikipedia/pywikibot-core,wikimedia/pywikibot-core